/*
**
**  Swift/XRT light curve for Mrk 421.
**
**  Data taken from the automatic processing at http://www.swift.psu.edu/monitoring/
**
**  When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949.
**
**  Key:
**
**   BinCenter      - Center of time bin (MJD)
**   BinHW          - One-half of the full time bin size (days)
**   Rate           - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s).
**   RateError      - 1 sigma error in source count rate (cts/s)
**   FracExp        - Conversion factor between bin size and observing time
**   Mode           - 0 if in Windowed Timing (WT)
**                    1 if in Photon Counting (PC)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   54558.031448       0.000148       45.96553        1.43761        1.00000     0
   54558.031732       0.000136       47.36025        1.51079        1.00000     0
   54558.032015       0.000148       42.30194        1.37854        1.00000     0
   54558.032311       0.000148       42.35226        1.37218        1.00000     0
   54558.032606       0.000148       42.84384        1.37591        1.00000     0
   54558.032904       0.000150       42.66969        1.35651        1.00000     0
   54558.033199       0.000145       44.74288        1.42205        1.00000     0
   54558.033494       0.000150       43.12553        1.38409        1.00000     0
   54558.033789       0.000145       44.51155        1.42804        1.00000     0
   54558.034087       0.000153       42.13986        1.35194        1.00000     0
   54558.034385       0.000145       44.15216        1.41896        1.00000     0
   54558.034677       0.000148       43.91829        1.39697        1.00000     0
   54558.034967       0.000142       44.53352        1.43481        1.00000     0
   54558.035253       0.000145       44.29781        1.40667        1.00000     0
   54558.035540       0.000142       44.84572        1.42985        1.00000     0
   54558.035832       0.000150       42.39910        1.35425        1.00000     0
   54558.036136       0.000153       42.43700        1.36129        1.00000     0
   54558.036434       0.000145       43.89254        1.41363        1.00000     0
   54558.036717       0.000139       45.92693        1.46739        1.00000     0
   54558.037007       0.000150       42.98514        1.37602        1.00000     0
   54558.037308       0.000150       42.51386        1.36452        1.00000     0
   54558.037600       0.000142       44.28733        1.43650        1.00000     0
   54558.037892       0.000150       41.61548        1.34902        1.00000     0
   54558.038190       0.000148       43.19959        1.37938        1.00000     0
   54558.038485       0.000148       43.29174        1.40051        1.00000     0
   54558.038783       0.000150       42.19783        1.35462        1.00000     0
   54558.039090       0.000156       40.64627        1.30266        1.00000     0
   54558.039391       0.000145       43.49342        1.40039        1.00000     0
   54558.039677       0.000142       44.50729        1.42725        1.00000     0
   54558.039964       0.000145       44.27259        1.41633        1.00000     0
   54558.040256       0.000148       42.84652        1.37786        1.00000     0
   54558.040548       0.000145       43.67031        1.40667        1.00000     0
   54558.040844       0.000150       42.25489        1.35687        1.00000     0
   54558.041144       0.000150       42.09470        1.35229        1.00000     0
   54558.041471       0.000177       43.66254        1.27244        1.00000     0